Means for closing and locking port-holes and the like.



W. V. GILBERT.

MEANS FOR CLOSING AND LOCKING PORT HOLESAND THE LIKE. APPLIOATION FILED 111111113, 1914.

'Patehted Sept. 22, 1914.

2 SHEETS-SHEET 1.

Hn-i NORRIS PETER: CO. PHOTLLLI 1110.,

wnsn INGTON. u. 1..

W. V. GILBERT.

- MEANS FOR CLOSING AND LOOKING PORT HOLES AND THE LIKE.

I APPLICATION FILED JUNE 13, 1914.

1, 1 1 1,571 Patented Sept. 22, 1914 2 sums-51mm z.

flnwsss s /Vfr0/P rig Q W227? #405 694501. 7

THE NORRIS PETERS ca. PHOTO-LITNQ. WASHINGTON. n. c.

'UNITEDSTATES PATENT-OFFICE WALTER- yrL A GILBERT, or oaivr'niainen, ENGLAND;

MEANS FOR cLosIne Annnocnme roar-Horns AND THE Linn.

Too whom it may con oern:

p Be it known that I, WALTER VILLA GIL- .nnn'r, ,asubject of the King of Great Britain and Ireland, and a resident ofCambridge,

England, have invented certain new and useful Improvements in Means for Closing and Looking Port-Holes and the like; andI do v hereby declare the following to be a full,

clear, and exact-description of the samefli Thlsinvention relates to improvements in ineans for closing and locking a port hole of an ship oran Orifice in any other {device (hereinafter, for convenience referred to as.

a port'hole in4ashipshull), of the kind comprising a carrier, Whichmay serve asthe closingpiece, mounted on thegships hull so as to; turn about a h nge p111 -'or equ1val ent 1n a plane axially and laterally clear oft-he .25 ample, comprise a handlever, a link, and ar port hole a movable locking membermvhich may serve as t-he'closing piece, coactingwith the- Qal1181' and the shlps hull; L and means foroperatinglthe 1 carrier and Itheflocking member and preferably for controlling the locking; member in the open position of the carrier. Said operating-meansmay, for eX- ticulations between one end of the link and thelever and between the other end of the link and the looking member, as described in the specification of British, Patent No,

9.656, dated Aprilltlll, granted tome; or a handle on thelocklng member; or, a

handle-provided, pinion on the carrier enin fixed relation to the carrier, Whilethe carrier is being turned about its hingepin, and to serve as a stop to the unlocking move, ment, as described in the specification of British"Patent No. 22218 dated 9 October 1911, grantedto me.

a a a a caused; first, to unlock the locking member,

and is caused-secondly, to Withdraw the clos- In such means suitable actuat on of theoperatlng device, 18

ing piece axially from the-port hole and to "swing the closingpiece about its hinge pin llaterally clear of the porthole, and reverse actuation ofthe operating devlce 1ev caused to restore the partsto theirshut position.

@The present invention is characterized by meansbeing provided for, at times, operating, or c ntrolling the peration of, ne r position;

gaging a quadrant onv the lockingmember, or :vice versa. Said controlling means may, for example, comprise a stationary guide' adapted to belengaged by thelocking memher to insure the locking'member remaining a'plura'lity ofzclosing and locking units of the kind aforesaid (hereinafter for convehience generally called closures), from a disitanjtpoint, or otherwise than by manually engaging the'lever or levers, or handle or handles, or other operating device, on the spot as h1therto,sa1d means comprising a connecting rod or member (hereinafter for convenienceficalled "an auxiliary? link,

although in some cases there is no other link,

or ca'lled a controlling link,) having connection, one end, to one of. the movable members oi the closure and, at the other end, to

a; movable controlling rod operable from a dlstant point, the controlling rod, auxiliary hnk, or one of such connections, being adapted to'permitof play or free movement;

so that, when the controllinglrod is in neutral position, any connected ,maywbe, freely operated by manuallyengagclosure ing its lever, or, handle, or other operating device, as hltllQI'tO, and Without moving the controllingfrod, and While the controlling rod .is being moved toward another position, it illshut anyclosure that may be open WltllQUt lCiZ lIigfOH any that may be shut, and, when moved to the latter position,

will retain each closure shut until the con-,

trolling rod is moved to or towardneutral The present invention is further charac Specification of Iietters Patent. 'Patented' Sept 22 1914 App lication fil e'd Jime 13, 1914i Serial no. 844,968.

jterizedby means being provided so that the closure may vbe 'yieldingly held in difierent open positions Withoutliability of slamming tothe shut position or otherwise, in the event of the ship giving a, sudden roll or some other cause, and that, in the event of any person having his head through the port hole When the controlling rod is moving to shutthe closure, hewill be Warned by the closure yieldinglycoming into contact with his back part, so that by instinct he Will at once Withdraw his head from the port hole,-

and the finish of themovement of the con trollingrod will unyieldingly shut and lock the closure. Ifdesired, a'bell or other audi lole signal or'alarm may be provided and adapted to be automatically set in operation by a projectionzlon jthencon'trolling .rod or.

otherwise. r I

The present invention. is 1 further; vcharacter zed by providing means for adjusting the stationary guide to accommodate, or:

complementary to the adjustment, of other parts to takeup slack 01' 10st motion'd e to which is slotted to permit the carrier to move 1n a perpendicular direct on toward or wear on the cam surfaces or other cause, as described in the specification of my application for British Patent No. 8022 dated 5th April 1913.

Embodiments of the invention are illustrated by way of example, in the accom- 1 aforesaid, an auxlliary link or member, is, may be connected at one end, Z0 to the hand panying drawings, in which Figure 1 is a front elevation showing means for operating or controlling the operation of a closure as aforesaid, and showing the latter held shut by the controlling means; Fig. 2 is a plan; F1g. 3 is a plan showing a closure held open 'and-fready-to be'shutby its hand lever or by the controlling means F ig; f is a section on t 4,

Fig. 1-; 5 is a section on 5 5, 'Fig. 1,

Figs; 6, 7 and 8 are front elevations showing threec'losu'res respectively open to an obtuse angle, open to an acute'angle, and shut; Fig. 9 is a plan ofFig. 6; Figs. 10 and 11 are a frontlelevation and aside elevation of a modification. 1

Like reference letters indicate like or equivalent parts wherever repeated in the drawings.

Referring particularly toFigs. l to 9,0 is .aport hole in the ships hull; b is a carrier mounted, on the ship s hull or a bed plate, a on a hinge pin, 6 0 is a locking memberturnably mounted on the carrier; 0, c

are lugs, or the like, on the locking member, 0, anda a are coacting cam or interrupted screw surfaces'on the part, a jcl, is a lever pivotally mounted, as at al e is a link connected by articulative means at one end to the lever, as by a biaxial'joint as at f and at the other end to a lug, c", on-the lockin'g'member, c, as by a triaxial joint as at g g g A handle, w may be provided on the lever, or on the lever connected end of-"the link.

72,, 1s a statlonary gulde consisting of rlbs or faces arranged in planes at right anglesto and concentric or approximately so with the hinge pin, Z2 and adapted to act as a stopto and to engage a projection, 0 on the locking member, 0. The guide may extend in a direction concentric or approximately so'with-the locking member, 0, at 1 b so as to maintain or facilitate engagement with the projection 0 The carrier has a central glass, [9 and may have a'ring of rubber or other packing, b, (Fig. 6'), or thepacking may be let into the face of the part, a. The hinge pin, 5 is mounted in a bracket, 6

against the part, a". The locking member, 0, may be constructed as a "ring surrounding the carrier, and may be held in place by dovetailing, or by single undercut inclined faces, suitable interrupted parts beingleft in the dovetailing or inclined faces to permit assemblage of the parts. v

' In Figs. 10 and 11, a handle m,is placed on the locking member, 0, andthehand leyer, (Z, lmk, e, and articulations are dispensed with. 1.

According to the. present invention, to operate or control the operation of one or a plurality of closures from a distantpomt as lever, (Z, or to a bell cranked extension, 61*, thereof (Figs. '1 to 9), and engaged at the other end, with a controlling rod, "m,

which may be arranged parallel or approximately so to the planein which the hand lever moves. Other arrangements of the auxiliary link and the controlling rod m'ay be adopted, for instance, in lieu of being connectedto the "hand lever, theauxiliary link may be connectedat one end to the locking member, 0, (Figs. 1.0 and 11) I Said play or free movement may be provided for pendently operated by, the handle',;rw, as

hitherto,when the controlling rod is infor is moved to neutral position, tide-the full line position .of the stop, m Fig.. 3. Then the controlling rod is being moved in the opposite directlon toward ts lockingposition," the respective stops, m ride the dotted line position, Fig. 3, engage and operate the respective auxiliary links, 70, of any portholes which are open,so as to cause the closures to be shut and locked m'cle Figs. 1 and 10 by turningthe carriers, 6, on their hinge pins, andby turnmgthe locklng r ngs, 0,

-on their carriers, and remain inengagement, until the controlling rod, m, is returned to neutral position, without moving the auxilia-ry links, 7c, of any shut port holes. It will free movement may be obtained between the auxiliary link and the lever, or between the auxiliary link and the lockingmember in analogous manner, for examplefby making be understood, however, that said player 1 the auxiliary link of a slotted formation enastud on the cranked end of the lever in a sliding manner, the slot being sufficiently long to accommodate the free movement of, the closure by hand, but when the end of the slot engages the stud, to cause the closure to shut. Or, the play maybe ob: tained'between the ends of the auxiliary link or member by makingit of a compressible, V

collapsible, flexible, or telescopicnature. these cases the auxiliary l1nk or member is or may be connected to the controlling rod in a non-slidable manner. I The auxiliary link may be to the plane in which the hand lever 65, moves, aide Figs. 1, 6, 7 and 8, and in such a case, if also the controlling rod beparallel to e y p I arranged to 7 move in a plane coincldent with or parallel 10 WIS employed to connect the aux l aryflhnkto the Mg, on-the'locking-member, andyto accommodate the movements of the parts."

the plane in which the lever moves, fl' rigid;

. member, k, with single :pivots, k k ateach kflfjk f, is employed to connect the auxillary 1 link to the controlling rod, m, the slide, I0

. rod, as aforesaid.

end for connecting the auxiliary lll ll fitOlilhe hand lever and the slide, 70 maybe em-;' ployed. In other cases multiaxial joints may beprovided toaccommod'ate the movementsf of the parts, and the slide may be. adapted' to turn onjthebontrolling rod,fm, to constitute oneof the articulations?fln Figs. "am 11, a triaxial joint, 70 103 ,10 3,

A series of auxiliary 'links are connected 17 to one Controlling rodwhenkit is desired to operate orcontrol the} operation of a series of closures. The controlling rod may be supported andjgguided in brackets,"m ,l on

3? articulated or made flexible at parts to accommodate curves or corners in f the ship s structure. I The controlling rod is adapted to beqoperated by any suitable motive power,

- controllable from theRbridge or other sta tionon theship by a lever, valve, switch or the ,likelfi For instance, the controlling" rod beconnected toahydraulicram controlled from thebridge. By these means,

the captain mayflshut any closures-that may be open without affecting thos'ewhich'ma'y bealre'aidy. shilt, and the passengers or crew I m at'norn al tii'nes, when the controlling rodis" inneutral position, open or shut any closure a's'desired without affecting or degfithe superior? control trom the .To'yieldingly V open positions, theslide, [0 may be provided with 'a clamping or braking" device,

' comprising a block, 70", "adapted to bear; on"

the controlling rod,.m, andiactedondirectly or through the intervention of a rubber buffer or spring-Z0 by a screw,]c, all mounted in a boss, If, on the slide,f7r The .screw,'lc

I is provided with a handle, 7c whichmay'be turned through an arc may have its motion limited by-a stop, 74?, on the boss, 73 when the handleyk is:in-thefull line position (Fig. 1) the friction between the block, 7c, andthecontrolling rod is suflicient,

. under normal conditions, tohold the closure in different openpositions and to prevent the closure from slamming, under 'its'fown weight if the shipij'rolls. When thehandle, 10?, is in "the dottedline positionl'Figu 1 nevertheless permitting the closure to-be operated by handor by the c ntrolling rodhold the closure in different mences to move to shut the closure, the stop, m is so arranged on the controlling [rod that, in the neutral positionof the latter, the stop isspacedsome distance from'the Thus when the "controlling rod is moved to moves the auxiliary link by the friction of the clampmgdevlce, Je so as to'cause the carrier, b,to turn on ltshinge pin, and,

contact with him, he will instinctively move backward pressure or resistance andvallow will take place when the stop, m ,"enga'ges the slide k'flfm'de thedotted line position rier, b, to again turn on its"hiI1gepin, and then ea-uses the locking ring, c, "to turn" on case wherethe play is obtained between tionspor sliding 'connections ofthe partswith spring'washers or equivalent means. i 19 vi'de'd on the ships hull or otherwise to limit the extent of openingof the closure.

in differentpositions alongthe hinge pin by'was'hers, b surrounding the hinge pin, 'or by set screws engaging' the-hinge pin or other part, or by nuts engaging screw threads on the hinge pin orother'part, or in analogous manner) j I n is a bellhavingYastriker, n adapted to be sounded by'a stop,j m -,on the'controlto shut the closure.

If desirecl,xthe controllingfrod may be effected, for example,'by'providing a braking. device with which a sufficiently firm clamping action may be obtained, or by pro viding a second stop,m",-onrthecontrolling rod. on the opposite side of theslide, 75, to the stop, m In the second case, after being "operated. to open the closures, the controlling rod is movediback so that the stop, m", is clear oftheslide, wide Fig 7 ,when it ated bythand. 3'

I is desired to permit; the closures to 'be operthe friction is increased to more firmlyhold i the closure in different open positions, while; a

v WhatI claim as my invention and to secure byfLett'ers Patent is x1. P rt hole and the like closing To enable physical warning to be given" to a person who may have his head through a porthole whenthe controlling :rodcomslide, 16 wide the! full line position Fig. 3.

shut the closure, the controlling rod first as soon as the passenger feels the closure backward and the"clamp[will yield"to his Fig. 3,-and m'cle Fig. 2, and causes the carthecarrier; It will be obvious thatin the A special stop, p, (Fig. 2,)fmay be prolingrod when 'itis inoyedin the direction adapted to open the closures. This may be desire means the closure to be opened thereby sufliciently forhim'to withdraw his head.- The final an yielding'shutting and locking of the closure comprising the combination with a closure having a turnable carrier, a movable lockln member, and a device for operating the locking member and the carrier on the spot, of a a controlling link connected at one end to one of the movable members ofthe closure, and

am'ovable controlling rod connected to the to act on the closure so that When the controlling rod is in neutral position the closure may be freely opened and closed by manually engaging its local operating device and vvit'hout moving the controlling rod, and

While the controllin rod is being moved toward another position the controlling rod will shut the closure if it is open butwill not act onthe closure if it is already shut, substantially as described. 1 "2. Port hole and the like closing means comprisingthe combination with a closure having a tu-rnable carrier, a movable locking member, and a device for operating the looking member and thecarrier on the spot, of a controlling link articulatively connected at one end to one ofthe movable members of the closure, a movable controlling rod articulatively connected to the other end of the con-trolling link and extendingto a distant point, parts of the controllingmeans being adapted to at times permit of relative sliding movement, and means for at other times preventing the relative sliding movement, so that when the controlling rod is in neutral positionthe closurev may be freely opened and closed by its local operating device and Without moving the controlling rod, and While the controlling rod is being moved toward another position the controlling rod Will shut the closure if it is not already shut, substantiall as described.

. 3. Port. hole and the like closing means comprising the combination With a closure havingv a turnable carrier, a movable look ing member, and a device for operating the locking member and the carrier on the spot,

of a controlling'link articulatively connected at one end to one of the movable members of the closure, a movable controlling rod articulatively.connected to the other end of the controlling link and permitting'the' latter at times tohavefacility of relative sliding movement, and stop'means on the controlling rod for at other times engaging'the.

controlling link indifferent open positions of the closure for moving the latter to the shut position, substantially as described; h

4L. Port hole and the like closing means comprising the combination With a closure having a turnable carrier, a movable locking member, and a dev ce for operatingthe locking member and the carrier on thespot, ofa

controlling articulativ-ely connected at one end to one-oi the inovablfi members of the closure ,a slide articulatively eennected to thect-herIend of the controlling link, a

longitudinally movable controlling rod on v which said slide is mounted and is at times adapted to move, and stop means onthe controlling rod'for engaging theslide in different' open positions of the closure for moving thelatter to the shut position, substantially as described:

comprising the corilbinationwith a closure having a turnable carrier, a movable locking" member, and a device-tor operatmg the lock-' ing member and the carrier on the spot, of a controlling linkarticulatively connected Y at one endto one of-ithe-"movable members of the closure, a movable controlling rod articulatively conneetede-to the other end of the controlling link, the controlling means being adapted to atitimes permit of free move-&

adapted to tunn in relation to the latter, sulostantially as described G APort hole and: the; like comprising the combination with a'closure having a turnable carrier, a movable member, and a devlee for operating the lock ing member and the carrier on the spot, ofa

controlling link ,articulatively connected at 5. Port hole m dithe one-end to one of the movable members of the closure, a movable controlling rodar ticulatively connected to the other endo'f the controlling link,. the controlling means ,being adapted to at times permit of free movement :ofthe closure, and Mother times to :shut the closure, and braking means i for yieldingly; holdingthe closure in different open positions to prevent it from slamming to p the shut position or otherwise, substantially as described; ,7

7. 'Porthole and the like closing means comprising the combination ith aclosure hav ng aturnable carrier, a movable locking member,- and Q a device for operating the locking member and the carrier on the spot,

of a a controlling link articnlatively -'connected- [at one end ito one ofthe movable members of the closure, amovable controlling rod connected-to theother end of the controlling ,link, parts of. the, controlling means beingadapted to at; times permit of relative sliding movement, and clamping means for yieldinglyf resisting the a relative"- sliding movement, substantially as described;

I, 8. Port holeyand the: like-closing means comprising the. combination with a (closure having a turnable carrier,aamovable lock- I i ving member, a device for operatingthe' -.lo ck1ng member and the carr er OIL-tile spot,

"of" a controlling link farticulatively connected at one end to one fof'the movable members of the closure, a movable controll1 fnected at oneendto one oflthe movable controlling means, r

ling trod articulatively connected to the other end offthecontrolling link,the controlling means being adapted to. at, times permitlbtfree movement of the closure and -at otherltim'es to act on thejclosurafand adj ustable braking means for yieldingly resisting relative movement between parts of the substantially] as .--described. f f. y I

9. Port hole" and the'flike,closing means comprising the combination with, a closure having a 'turnable carri-er, a movable looking member, and a' device for, operating the locking member and the carrier onthe .spot, of, a controlling link" articulatively eonmenibers of the closure, a movablefco ntrolling rod articulative'ly] connected .to the other end of the controlling link, yielding means in the connectionbetween the controlling rod and the closure, and unyielding means such,connectiomj which yielding and unyielding means are ,adaptedto oper- ,atel in -consecutive order whenthe controlling rod is moved to shut the closure, subistantially as described. so comprising the combination with a closure 10. Port hole and the like closinggmeans having a turnable carrier, a movable locking member, and a devicefor operating the locking member and the carrier on thespot, of a controlling link articulatively connected at one end to rone of the movable members of the closure, a movable control- (fling, rod articulatively connected to the other end oftthe controlling link and permitting the latter at times to have facility of relative sliding movement, and stop means on the controlling rod for-at other times engaging the; controlling linkfor moving the closure to the" shut position, the

"controlling rod when in neutral position.

having its .stop means spaced some distance from the slide, substantially as described. 111 Port hole and the like closing means comprising the combination with aolo'surej having a turnable carrier, a movable locking ,member, and a device for operating the looking member andthecarrier on the spot, of.

a controlling link articulativ'ely connected at one end to one of the movable, members of. the closure, a movable controlling rod articulatively connectedto the otherend of the controlling link and permitting the latter at times to have facility of relative sliding movement, clamping] meansfor yieldingly resisting relative movements; ofthe parts, and stop means on the controlling rod for at other a times .engagingthecontrolling link for, moving the closure'to the shut positionfthe controlling rod when in link, the controlling means being adapted to at times permit of free movement of the closure and at other times to fact on the closure, so that when; the controlling rod is "'80 a in neutral position-theclosure maybe freely opened and closed by manually engaging its local operating device w'ithout movmg the controlling rod, 'and while the control- ,a

I ling rod is being movedtoward another po'- 731E011 the controlling rod will shut the 'closur'eif it is openbut will not act on the closure if vit is. already shut,I and when moved to the latter position will retain the.

closure shut until the cont rjollingfjrod isO moved to or toward "neutral jposition,

whether it was previously sh-ut or as i just beenshut by thecontrolling means,"snbstan- 'tially as describedl'. i

j l, gll ort' hole and thelikeclosing means 9 5 COIDPllSlIlg the combination with aclosure having a turnable carrier and a turnable locking member, of a controll ng link connected at one end to an er the turnab'le,.fl

members of the closure, and a movable controlling rod connected to the other, end of :the controlling link and extendingto a distant point, the controlling [means being adapted to at times permit off free move-g,

'ment of the closure andat other times toact 1'05 v on the closure, substantially'as described.

'14. Port hole and the like closing means comprising the combination with a closure having a'iturnable carrier, and a turnable locking member, of aco'ntrolling link hav 'ing one endinoperative connection with the carrier, and'a slidable controllinglrod in op- [erative connection with the other end of the controlling link and L extending to a distant r point, controlling means being" adapted 1' 1 5 to attimfes' permit or free movement of the 'clo'sure and at other times as act'on theolosu're', substantially as described.

,15,,Porthblejandgthe like closing means ,comprisin the combination with a ,Iclosnre having a turnablecarrier, aturnable looking Inembern ountedfon the carrierfand a hand lever for operating theicarrier and the locking member on theflspot, of acontrollin e link having one "end in operative'eonnection with the hand lever, and a slidable control- .ling'rod in operative connection with the other end of the controlling link and extending to a distantpoint, the controlling means being adapted to at times permit of" "having a turnable carrier, a turnable locking Y member mounted on the carrier, a hand lever, and a link articulatively"connected tov the hand lever and the turnablelocking member, of an auxiliary controlling link having one end operative connectionwith the hand lever, and a slidable controlling rod inoperative connection with the other end of the controllinglink and extending to a distant point, the controlling means being 'ada'ptedto at times" permit of free movement'of theclosu'r'e and at other times to act on the closure, substantially as described.

'17. Port hole and the like closing means: comprising the combination with a closure having a tnr'nable carrier, aturnable locking member'mounted on the carrier, and a hand lever for operating the carrier and the looking member on the spot, of a controlling link-having one end in operative connection with the hand lever, and a slidable controlling-rod in operative connection with the other end of the controlling link and'cxtend- I ing' to a distant point, the controlling link as well as the controlling rod; moving in a plane 'aar'allel to the plane in whichthe hand lever moves, substantially as described.

18 Port hole the like closing means comprising the combination with a closure having a turnable carrier, a turnable locking member mounted on the carrier, and a hand lever for operating the carrier and the locking' member" on the spot, of a controlling link, a longitudinally movable controlling rod, a slide on the controlling rod, means for varying the friction of the slide on the con trolling r'od, stop means on the controlling rod for engraging' the slide, and pivotal meansconnecting the controlling link to the hand lever and to the slide, substantially'as described. I Y 19. Port hole and the like closing means comprisi g the combination with a closure having a turnable carrierg-a locking member mounted on the carrier, stationary 'coacting locking parts, and a hand lever for operating thecarrier' and the locking'memberon thes'pot, ofa controlling link, a longitudinallyl movable controlling rod, a slide on the controlling rod, means for operatively connecting theslide to the controlling rod, and uni-axial joints for connecting the controlling link to the hand lever and to the slide, substantiall; as described. 20. Port ole and the like closing means comprising the combination with a closure having a turnable carrier, a turnable locking member mounted on the carrier, stationary coactinglocking parts, and a hand lever for operating the carrier and the locking meinher on the spot, of a bell-crank extension on said hand leverja controlling link, alongi' tudinally movable controlling rod, a slide'on the controlling rod, means ioroperatively 'connectingthe slide to thefcontrolling rod, and articulative means for connecting the controlling link to the hand lever and to the slide, substantially as described. I, I

21. Port hole and the like closing'means comprising the combination with a closure having'a turn'ablecarrier, a turnable' locking member mounted onthe'carrie'r, a hand lever pivotally mounted' on the carrier, and a link articulatively connected to the jlever and to the turnable locking 'm'einber for operating the closure on the spot, of an auxilia'ry controlhng linkhaving one end in operative connection with the hand lever, a longitudinally movable controlling rod, a slide on the member mounted on the carrier, and stationary coacting locking parts, or a controlling link havingone end in operative I connection with one of the movable members of the closure, anda slidable controlling rod in operative connection with the other end of the controlling link and eX- tending to'a distant point, the controlling, means being adapted tof'attimes permit-of free movement of the closu'reand at other times to act on the closure to close it when desired, and to open it when desired, sub-- stantially as described; I

23. Port hole and the like closing means comprising the combinationfwith a closure having a turnable carrier, a movable locking member mounted on the 'carrier, and

stationary co-acting locking parts; of a can I trolling link having OIIQ'BIld inoperative a connection with one" of I the movable members of theclosure, a slida'ble controlling rod in operative connection with the other end of the controlling link and extending to a distant point, a slide on the controlling rod, stop meanson'thec'ontrolling' rod for operating the slideto shut the closure,'. and stop means on the controlling rod'for operating the slide to open the" closure, said stops beingso spaced apart as to at times permit of: free Inovementof the closure when desired, 'substantially'as describedf 24. Port hole and the like closing means comprising the combination with a closure having a turnab'le carrienafturnablelockmg member mounted on the carrier, stationary coacting lockmgparts, and means for operating the carrier and the locking mem her on the spot, of'an adjustable stationary guide engaging the'turnable locking member, .a controlling link having one endin operat ve connection wlth one of the turnable members of the closure, and a slidable controllingrod in operative connection With the other end of the controllinglink and extending to a distant point, the controlling means being adapted to at times permit of free movement of the closure and at other times to act on thegclos'ure, substantiallyas the'other. end of the controlling link and ex tending to a distant point, the cont'rolling means being adapted to at times permit of free movementof the closure. and at other times to act on the closure, substantially asf deso'ribed- 26. Iort hole and the likeclosing means comprising the combination Withjaplurality of closures each having a turna'ble carrier,

a turnable locking member mounted on the carrier, and means for, operating'the carrier and the locking member on the spot,'of a -'j plurality of controlling links one for each closure and respectivelyhaving one end in operative connection 'With one of the movable members of its respective closure, and a'slida-ble controlling rod inoperative connection With the other end of each respective controlling link, the controlling means being adapted to at times permitof free movement of allthe closures and at other times to act onallfthe closures, substantially as described. I a i 27. Port hole and the like closing means comprising the combination With a plurality of closures each having a turnable carrier, a turnable locking member mounted on the carrier, and means for operating the carrier and the locking member on the spot,

of a plurality of controlling links one for each closure, a slidable controlling rod in operative connection W 1tl1 the other end of each respective controlling link, and means for varying the friction at the respective operative connections, the controlling means being adapted to at times permit of free independent movement of any of the closures by manually engaging the local operating means, and at other times to act on any of the "closures to hold them in difierent open positions, to shut any of the closures Without operating those which are already shut, and to hold all the closuresshut, sub stantially as described. i

In testimony whereof I aflix my signature,

in presence of tvvo'subscribing Witnesses. l WALTER VILLA GILBERT. Witnessesz" i i ALFRED DAY,

W. E. ROGERS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, 

